| 摘要 |
A plant feed composition contains water, nutritive metal ions and at least one organic compound having at least one anionic functional group. The nutritive metals include iron, copper, manganese, zinc, calcium and potassium. Preferably the organic compound is a chelating agent such as citric acid, lactic acid, malic acid or EDTA. Alternatively, the organic compound may be a maleic / acrylic acid copolymer. The solution is prepared by reacting at least one water insoluble metal source with the a least one organic compound. The composition may be devoid of inorganic anions. Stock solution can be made in accordance with the invention, into which additional nutrients or beneficial factors, such as pesticides and hormones, can be added.
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